# Copyright (c) 2009, Benjamin Dumke
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"""Relevance overflow was first implemented using the builtin urllib module for
   retrieving data from SO. To use HTTP/1.1 compression, this very module tries
   to import httplib2 (http://code.google.com/p/httplib2/ ; not a part of the
   standard library) and if it's there, wraps it into a function urlopen that
   behaves like urllib.urlopen (to be exact, the small part of it that we're
   actually using)."""

try:
    import httplib2
    import StringIO
    
    def urlopen(url):
        http = httplib2.Http()
        response, content = http.request(url)
        if response.status != 200:
            raise IOError
        return StringIO.StringIO(content)
        
except ImportError:
    from urllib import urlopen
    
